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Creelsboro Natural Bridge
Creelsboro Natural Bridge (more commonly referred to as Rock House or the Rockhouse) is a natural bridge in southwestern Russell County, Kentucky, USA. It is located near the community of Creelsboro, approximately downstream from Wolf Creek Dam, which impounds Lake Cumberland. The Rockhouse is classified as a ''meander'' natural bridge because it was created by river erosion of a cliff on the outer side of a sharp meander in the river. Jim Creek flows through it before merging into the Cumberland River. With a span of , it is the seventh largest natural bridge in the USA.
==History==
Rockhouse strata is over 440 million years old (Upper Ordovician Period, Cumberland Formation, Silty Dolomite). Unlike most natural bridges it is made of dolostone rather than sandstone. First discovered in 1770 by a group of hunters, Rockhouse is a popular site for camping. It was designated a National Natural Landmark by the U.S. National Park Service in 1987. It remains privately owned but is accessible by a short walk from KY 379. Immediately across the river in Clinton County is the private Rockhouse Trace.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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